Cees BassaHappy new year! Another year means another year-long keogram! Every 15 seconds throughout 2022, my trusty all-sky camera took a picture of the sky above the Netherlands. Combining these 2.1 million images into a year-long keogram reveals this picture, which shows the length of the night change throughout the year (the hourglass shape), when the Moon was visible at night (diagonal bands), and the Sun higher in the sky during summer, as well as lots and lots of clouds passing overhead.
This is the second year that this all-sky camera, consisting of a @Raspberry_Pi computer and a ZWO CMOS camera, ran continuously for a year. Compare the 2022 year-long keogram with that of 2021.
Joost Tel ☑@cgbassa @[email protected] Beautiful. I did however expect a strange shift on daylight saving time :)
@joosttel @Raspberry_Pi Yes, that’s a weird social construct which would ruin a plot like this.